Comparison

TheDayBefore (days countdown) vs ZELLU

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TheDayBefore (days countdown)

Easily manage important dates and countdown to special events with customizable widgets and decorative options. Record memories, share milestones with loved ones, and organize your schedule by category. Never miss a precious moment again.

Highlights
  • Customizable D-Day countdowns
  • Lock screen and home screen widgets
  • Multiple calculation methods (days, months, weeks)
  • Event decoration with stickers and effects
  • Story feature for recording memories with photos
  • Sharing of D-Day events
  • Category-based event grouping
Features
Read full description

From big exams and anniversaries to fandom days and graduation, turn every day you're waiting for into a event — managed with widgets, notifications, and stories. The Event app, The Day Before For students counting down to exams, couples tracking anniversaries, friends counting down to graduation, and fans marking their favorite artist's next release — — count every day with The Day Before. ● Make any day your own event · Choose from 80+ keywords including exams, couple anniversaries, graduation, fandom days, and baby milestones. · Never miss lunar calendar dates like lunar birthdays, memorial services, and holidays. · Select a keyword and the icon, background, and notifications are set up automatically. ● Pin your event as a widget on the screen you see every day · Check your event anytime with home screen and lock screen widgets. · Multiple sizes and styles — perfect for personalizing your phone. ● We'll remind you so you never forget your event · Get custom notifications on the day, D-7, D-3, or D-1 — whenever you want. · Anniversary notifications like 100 days and 1-year milestones are set automatically. ● Customize your event in your own style · Choose your own background photo, icon, effects, stickers, and fonts. · Your customized design shows up on your widget too. ● Capture today's excitement with a Story · Save special moments with photos and text for each date. · Upload up to 8 photos per story. ● Count together with people who share your vibe · Meet others waiting for the same day in Recommended events. · Album drops, weddings, new jobs — turns out you're not counting alone. · Connect with others through comments on Recommended events. [Optional Permissions] · Photos: Used to load and save photos when using or sharing background images. · Camera: Used to take and attach photos to your Stories. · You can still use the app without granting optional permissions, except for features that require them. Have a question? We're always here to help · Email: help@thedaybefore.kr · Terms of Use (EULA):https://www.thedaybefore.kr/terms

About

ZELLU

Engage in anonymous popularity polls with friends and discover who likes you. Collect story cards by completing missions with a unique creature, offering a relaxing experience.

Highlights
  • Anonymous popularity voting
  • Discover who likes you
  • Collect story cards
  • Complete missions
  • Relaxing gameplay
Features
Read full description

ZELLU에서 친구들과 함께 즐거운 시간을 보내요! "우리 학교에서 이성에게 제일 인기가 많을 것 같은 사람은?" ZELLU에서 우리 학교 인기 투표가 진행 중이에요! 친구들과 익명 투표를 주고 받으며 누가 나를 좋아하는지 지금 확인해 보세요. "모든 이가 하찮다고 무시하지만, 사실 시고르자브종에게는 특별한 능력이 있습니다." 가끔 힐링이 필요할 땐 시고르자브종의 특별한 능력을 확인해 보세요! 미션을 클리어 할 때마다 스토리 카드를 수집할 수 있습니다. 시고르자브종과 부하들의 기구한 인생 스토리 카드를 모두 모아 보세요.

Screenshots

TheDayBefore (days countdown)4 screens
ZELLU1 screens

Verdict

The call

The clearest difference is ads: ZELLU at none against TheDayBefore (days countdown)'s shown. ZELLU also leads on iOS requirement (15.1 vs 17.0). TheDayBefore (days countdown)'s advantage is ratings volume (1.1K vs 15) and update cadence (every 4 days vs every 2 weeks). On price, rating, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TheDayBefore (days countdown) sells 2 in-app purchases, starting at $1.49 per month and ZELLU sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ZELLU holds the better App Store score, 4.9 against 4.8. That said, the two scores are not equally well evidenced: TheDayBefore (days countdown) has 1.1K ratings behind it against 15, so its average is the more settled of the two.

UpkeepUpdate frequency

TheDayBefore (days countdown) ships an update every 4 days, ZELLU every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
TheDayBefore (days countdown) versus ZELLU: the parameters behind the verdict, then further details
ParameterTheDayBefore (days countdown)ZELLU
PriceFreeFree
Rating4.8 (1.1K ratings)4.9 (15 ratings) — better
Positive reviews86.0% of reviews—
Number of ratings1.1K — better15
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size338 MB33 MB
Age rating4+4+
DeveloperTheDayBefore, Inc.Liquid Nation Inc.

Customer experience

TheDayBefore (days countdown)

All ratings1,084 ratings
Positive95.5%
Neutral2.1%
Negative2.4%
Written reviews1,064 reviews
Positive86.0%
Neutral7.1%
Negative6.9%

ZELLU

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

TheDayBefore (days countdown)

Subscriptions1
  • Basic (1-Month Plan)$1.491 Month
One-time1
  • Remove Ads$9.99
10 purchases

ZELLU

One-time10
  • 3 Sneak Peeks$0.59
  • Follower Reveal Pass$0.59
  • 50 Meat$0.59
Show 7 more
  • 10 Sneak Peeks$1.29
  • 100 Meat$1.29
  • ZELLU PREMIUM$1.99
  • 300 Meat$1.99
  • 10 Grilled Meat$1.99
  • 20 Grilled Meat$3.29
  • 50 Grilled Meat$6.49

Questions

Is TheDayBefore (days countdown) free?
TheDayBefore (days countdown) is free to download, with in-app purchases available.
Is ZELLU free?
ZELLU is free to download, with in-app purchases available.
Which has better reviews, TheDayBefore (days countdown) or ZELLU?
ZELLU is rated higher. TheDayBefore (days countdown) averages 4.8 out of 5 from 1.1K ratings, while ZELLU averages 4.9 from 15 ratings.
Do TheDayBefore (days countdown) or ZELLU have ads?
TheDayBefore (days countdown) shows ads; ZELLU does not.
Which is updated more often, TheDayBefore (days countdown) or ZELLU?
TheDayBefore (days countdown) ships an update every 4 days, and ZELLU every 2 weeks. Most recently, TheDayBefore (days countdown) was updated on November 1, 2026 and ZELLU on November 3, 2026.

Other comparisons